Sankhya B

, Volume 73, Issue 2, pp 331–359 | Cite as

A generalized Lindley distribution

  • Saralees NadarajahEmail author
  • Hassan S. Bakouch
  • Rasool Tahmasbi


A new distribution is proposed for modeling lifetime data. It has better hazard rate properties than the gamma, lognormal and the Weibull distributions. A comprehensive account of the mathematical properties of the new distribution including estimation and simulation issues is presented. A real data example is discussed to illustrate its applicability.


Gamma distribution Lindley distribution Lognormal distribution Weibull distribution 



The authors would like to thank the Editor-in-Chief and the referee for careful reading and for their comments which greatly improved the paper.


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Copyright information

© Indian Statistical Institute 2012

Authors and Affiliations

  • Saralees Nadarajah
    • 1
    Email author
  • Hassan S. Bakouch
    • 2
  • Rasool Tahmasbi
    • 3
  1. 1.School of MathematicsUniversity of ManchesterManchesterUK
  2. 2.Department of StatisticsKing Abdulaziz UniversityJeddahSaudi Arabia
  3. 3.Department of Mathematics and Computer ScienceAmirkabir University of TechnologyTehranIran

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